baber/WOPTO huggingface dataset:
Patent GB-815444-A (GB)
Title: Improvements in lock stitch sewing machines
IPC: D05B27/02
Filed: 1956-10-29
Abstract: 815,444. Sewing machines. PHOENIX NAHMASCHINEN AKTIENGESELLSCHAFT, BAER & REMPEL. Oct. 29, 1956 [Nov. 2, 1955]. No. 32924/56. Class 112 Feed by dogs. In a lock stitch sewing machine of the type comprising a looptaker 1 rotating in a plane perpendicular to the direction of operation of the feed dog 31 and having a shaft 29 disposed in a driving gear housing 14, the feed dog is supported above the housing by transverse struts 30 connecting two carrier arms 28 which are pivoted to upwardly extending lever arms 27 on a shaft 26 and are disposed on opposite sides of and substantially parallel to, the looptaker shaft 29. In order to prevent sagging of the feed dog and torsional strain in the carrier arms, the forwardly projecting end of the inner carrier arm has a fork 32 which engages the lifting lever 34 at a point so spaced from the point of pivotal connection of the outer carrier arm with its lever 27 that, when viewed from above, the imaginary line joining these two points crosses the axis of the pivot of the presser foot (not shown) within the area of the feed dog. Frames. The bottom 10 of the base pan, on which is mounted the looptaker gear housing 14, is formed with an aperture 11, giving access to the drive gear 4 of the looptaker drive shaft 5, and an aperture 12 giving access to the looptaker.
Patent GB-789318-A (GB)
Title: Improvements in or relating to the production of derivatives from aldoses or ketoses
Inventor: CORBETT WILLIAM MICHAEL
IPC: C07C59/105
Filed: 1954-11-16
Abstract: Saccharinic acids or salts thereof are produced either from a substituted aldose in which the 1-0 position is free, the 3-0 position is connected with another 0-position by at least one alkylene, isoalkylidene or arylidene substituent, and the 2-0 position is free or connected with the 3-0 position, or from a substituted ketose in which the 2-0 position is free, at least one of the said substituents connects the 4-0 position with another 0-position, and the 3-0 position is either free or connected with the 4-0 position, characterized by the step of treating the substituted aldose or ketose with an inorganic base. Thus, glucometasaccharinic acids or their salts are produced by a process which includes treating the appropriate hexose, i.e. glucose, mannose, allose, or altrose containing an alkylidene, isoalkylidene, or arylidene substituent bridging the 3-0 position with another 0-position (other than the 1-0 position) with an inorganic base.  Similarly, glucoisosaccharinic acids may be obtained from a hexose containing one of the said substituents bridging the 4-0 and 6-0 positions.  The reaction with the inorganic base is preferably carried out under non-oxidizing conditions, for example, by using a solution of metal oxide which is alkaline and oxygen-free or by using an alkaline metal oxide solution in an atmosphere of nitrogen or a combination of both means.  In examples: (1) 2 : 3-5 : 6-diisopropylidene - D - mannose in oxygen - free lime water is maintained at 90-95 DEG  C for 41 hours, the resulting solution is saturated with carbon dioxide, boiled and filtered, and the filtrate on evaporation yields mixed calcium 5 : 6 - isopropylidene - glucometasaccharinic acid; the latter is heated with dilute sulphuric acid and then neutralized to yield mixed calcium glucometasaccharinates; (2) a suspension of 4 : 6-0 benzylidene-D-glucose in oxygen-free lime water is stirred until solution is complete, allowed to stand until a white precipitate separates, the suspension is saturated with carbon dioxide, steam distilled to remove benzaldehyde, filtered and evaporated to yield mixed calcium glucoisosaccharinates.  Similar results are obtained with sodium hydroxide at room temperature.
Patent GB-860976-A (GB)
Title: Improvements in or relating to platform stabilizers
IPC: B65G1/07
Filed: 1958-10-17
Abstract: 860,976. Boxes. WHITE, CHILD & BENEY Ltd., and BENEY, R. W. O. Aug. 12, 1959 [Oct. 17, 1958], No. 33145/59. Class 18. [Also in Group XXX] A container 11 (which may be wheeled) has an article receiving platform 12 which is mounted on springs 13 and is maintained horizontal by four lazy tong mechanisms 14. The latter may be secured to a false base of the container. In a modification, Fig. 5 (not shown), there is a single spring 13, and three mechanisms 14 are disposed in triangular arrangement.
Patent GB-1090510-A (GB)
Title: Process for the preparation of alizarin derivatives
Inventor: OERTZEN KLAUS VON
IPC: C09B1/515
Filed: 1966-07-25
Abstract: Alizarin derivatives which contain in the 4 position an amino group optionally substituted by an alkyl, aryl, alkylsulphonyl or arylsulphonyl group are prepared by reacting (a) a 1-amino anthraquinone having a 4-amino group optionally substituted by an alkyl, aryl, alkyl sulphonyl or arylsulphonyl group and containing a 2-sulphonic acid group, halogen or optionally etherified hydroxyl group with (b) an alkali metal hydroxide or alcoholate at 80 DEG -200 DEG  C., the molar ratio (b):(a) being at least 4:1 and preferably 10:1 to 100:1.  Alcohols from which the alcoholate may be prepared include C1-C4 alcohols, ethylene glycol and ethylene glycol monomethyl ether, and the reaction may take place in presence of water or an organic solvent e.g. pyridine, methylpyridine, N-methyl pyrrolidone, dioxan or anisole.
Patent GB-1201770-A (GB)
Title: Improvements in or relating to sintered carbides
Inventor: GRAMBAL JINDRICH
IPC: C22C29/06
Filed: 1970-03-24
Abstract: 1,201,770. Sintered carbide compositions. ZAVODY JANA SVERMY NARODNI PODNIK. March 24, 1970, No.33409/67. Heading C7A. Sintered compositions, suitable for bonding diamond particles in making grinding tools, consists, apart from impurities, of:-one or more carbides of W, Ti, Mo, Ta, V and Cr, 2-45% of one or more of Fe, Co and Ni, 0À125-5% P and 0-5% B.
Patent GB-216905-A (GB)
Title: Improvements in or relating to submarine weapons
IPC: F41F3/10
Filed: 1922-12-07
Abstract: 216,905. Elia, G. E. Dec. 7, 1922. Marine mines; launching torpedoes.-A torpedo B is supported by a buoy A moored by a single cable C connected to an anchor G, which may be an automatic anchor of the kind used to anchor submarine mines at a given depth, for example, such as described in Specification 218,334; and means are provided to discharge the torpedo towards a passing ship if the mooring cable is caught by the line of a sweep or paravane towed by the ship. As shown, the starting lever b<2> of the torpedo is locked by a hook f on a slide F connected by a lever E to a slide D on the end of the mooring cable, the lever E being fulcrummed at e<1> and held in place by a spring f<1>. The buoy A is provided with vanes a<1>, and the mooring cable C is attached to the buoy in advance of its centre of gravity or pressure. When the mooring cable is caught by the line of a sweep or paravane, the buoy turns and points the torpedo towards the ship towing the sweep or paravane; and when the sweep line reaches the.slide D, the lever E is deflected and pulls the hook f from the starting lever b<2>, which is operated by a spring to start the torpedo by its own power. Such devices may be used instead of submarine mines, or in or round a. mine field.
Patent GB-660294-A (GB)
Title: A two stroke cycle internal combustion engine comprising a blower driven by the energy of the exhaust gases
IPC: F02B37/04
Filed: 1948-12-30
Abstract: 660,294. Pumps. WERKSPOOR N. V. Dec. 30, 1948 [Dec. 31, 1947], No. 33533/48. Class 7(ii)  In a two-stroke engine having uniflow scavenging, inlet ports 38 uncovered by the piston, and outlet ports in the cylinder head. an air chamber 37 communicates with the ports 38, a positive-displacement air pump 41 is in open communication with the chamber 37, a blower 31 driven by an exhaust turbine 30 communicates with the chamber 37 through a non-return valve 40, and a byepass is 'provided whereby the working space of the pump may be placed in free communication with the chamber 37 so as to cut out the pump when the air supply from. the blower 31 is sufficient. The pump, as shown in Fig. 4, is double acting and has inlet and delivery valves 50, 51 and 56, 57 respectively. Sleeve valves 61, .62 adapted to byepass the delivery valves, are adjustably spring-loaded. The pressure in the chamber 37 acts on one side of each sleeve valve and atmospheric pressure admitted into a space 66 or 67 acts. on the other. Specification 586,024, [Group XXVI], is referred to.
Patent GB-429679-A (GB)
Title: Improvements in cinematograph projection screens
IPC: G03B21/56
Filed: 1933-11-30
Abstract: 429,679. Projection screens. TURNER, E. G., 72, Minchenden Crescent, Southgate, London. Nov. 30, 1933, Nos. 33603 and 35704. [Class 97 (i)] Threads of asbestos having a copper or other wire core are woven so as to form a projection screen having numerous small apertures between the threads. The threads are formed by twisting, winding, or braiding, asbestos fibres round the wire, and may be woven in groups in the manner described in Specification 429,699. The edges of the screen may have a webbing border carrying metal eyelets, or the threads may be arranged close together at the edges, the webbing being dispensed with. The screen may have light-reflecting and dirtprotective dressings ; the dressings may be such as to be removable without damage to the threads.
Patent GB-1239978-A (GB)
Title: Ion-exchange processes
Inventor: AKEROYD EWART INGMAN
IPC: B01J47/10
Filed: 1968-07-15
Abstract: 1,239,978. Ion-exchange; magnetised/ magnetisable resin particles. PERMUTIT CO. Ltd. 1 July, 1969 [15 July, 1968], No. 33666/68. Heading B1J. Ion exchange resin in the form of particles having a size of less than 295 microns, preferably less than 150 microns, and containing finely divided magnetised or magnetisable material is used in the ion exchange treatment of aqueous liquid, for example water, by a process which comprises passing the liquid in continuous manner through a bed of ion exchange resin situated in an absorber and maintaining the bed in appropriate condition by removing exhausted resin from the liquid inlet end of the bed, passing such exhausted resin through a regenerator wherein it is regenerated and returning regenerated resin to the liquid outlet end of the bed in the absorber. It is preferred that the particles, which are in a magnetised state when in each of the absorber and the regenerator, are demagnetised on leaving either the absorber or the regenerator and are remagnetised on entering either the absorber or the regenerator. The flow of liquid may be either upwards or downwards in each of the absorber and the regenerator; the movement of the particles in each of the absorber and the regenerator is in a direction opposite to the direction of flow of liquid therein. The particles may be removed from and returned to the absorber either continuously or intermittently. The particles preferably are in the form of beads comprising copolymeric material; the specification gives details of the preparation of beads which comprise sulphonated cross-linked styrene-divinyl benzene copolymer and either magnetic iron oxide or ferrite and of beads which comprise phenol-formaldehyde condensation resin and magnetic iron oxide, the beads in each case being in the sodium form. The process may be carried out in apparatus which comprises an absorber, a regenerator, a first connection between the absorber and the regenerator for effecting transfer of particles from the absorber to the regenerator, a second connection between the absorber and regenerator for effecting transfer of particles from the regenerator to the absorber, a pump situated in each connection, devices for magnetising the particles during transfer thereof from each pump to the respective absorber or regenerator and, preferably, devices for remagnetising the particles during transfer thereof to each pump from the respective absorber or regenerator, a further pump for supplying regenerant to the regenerator and a control device for starting all three pumps simultaneously; the specification discloses an illustrated embodiment of such apparatus and its use in softening water, the flow of liquid being upwards in the absorber and downwards in the regenerator.
Patent GB-1436464-A (GB)
Title: Process for the separation of soot particles from an aqueous suspension
IPC: C01B3/36
Filed: 1973-07-16
Abstract: 1436464 Separating soot from water SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ BV 16 July 1973 [18 July 1972] 33779/73 Heading C1C Soot is separated from an aqueous suspension thereof obtained by the water-washing of gases produced in the partial combustion of hydrocarbons by means of a gas flotation process wherein the soot particles are rendered waterrepellent prior to flotation by addition of a light liquid hydrocarbon or mixture of hydrocarbons such as naphtha.
Patent GB-509243-A (GB)
Title: Improvements in and relating to motor vehicles
IPC: B62D23/00
Filed: 1937-12-07
Abstract: 509,243. Vehicle bodies. BRIGGS MANUFACTURING CO, Dec. 7, 1937, No. 33853. Convention date, Dec. 7, 1936. [Class 108 (i)] [Also in Group XXXI] A motor vehicle comprises a rearwardly located transverse bulkhead 15 attached to which are a pressed metal reinforced floor structure carrying the front non-driving wheels and a rear frame 60, 61, 62 in which a transversely extending power unit is supported at two spaced points on the bulkhead and by means of longitudinal member connected to the centre of the rear cross frame member 62, the bulkhead transmitting the major portion of the driving force to the floor structure. The driving wheels are carried by swinging arms mounted in common with the power unit on the bulkhead, the arrangement being the same as described in Specification 480,058 which is referred to. The bulkhead 15 comprises a box girder formed of two flanged channel members 16, 17 united by welding &c. and lightened by apertures 18. The floor structure comprises flanged channel longitudinals 20, 21 extending from the lower bulkhead member 17 and braced by cross channel members 22, 23, with extensions 24, 25 welded to the outer sides of the longitudinals. The floor pan 29, which may be reinforced by ribs &c., extends the length of the body forwardly of the bulkhead and is secured to the ends of the extensions 24, 25, by vertical flanges 28 from which extend lateral flanges 31, the edges being finished by rounded channel members 32, Fig. 6. Rear pillars 36 are welded to the ends of the bulkhead, their upper ends being curved to form continuations of side roof rails 40 which are also secured to the tops of intermediate' door pillars 38 and front posts 42. At the front, a luggage and spare wheel compartment 54, with a dummy radiator grille 57 and hinged lid 56, is separated from the main compartment by a pressed metal dash 51 and inclined foot board 52 which, together with a rear seat pan 53, contribute to transverse rigidity. A stiff roof panel 44, secured to the side rails 40, extends from the windshield 44, with an opening 46 for the rear window, its rear edge being joined by welding to a sheet 47, 49 partitioning off the engine compartment and secured at its lower edge to the bulkhead. The rear frame 60, 61, 62 is braced by curved members 63, and enclosed by a panel 70 with a hinged lid 71.
Patent GB-936169-A (GB)
Title: Improvements in or relating to furnaces for intermittent combustion
IPC: F23C15/00
Filed: 1961-09-21
Abstract: 936,169. Generating combustion products under pressure. GUSTAVSBERG FABRIKER A.B. Sept. 21, 1961 [Sept. 22, 1960], No. 33890/61. Drawings to Specification. Class 51 (1). A furnace for intermittent combustion of the type in which air is drawn into a combustion chamber by inertia of the outlet gases leaving the chamber through one or more outlet ducts, the combustion chamber having an air intake controlled by a non-return valve and fuel supply means operating at a frequency of less than 50 cycles per second, has a ratio of the volume of the combustion chamber to the total volume of the outlet ducts between 0.1 and 1.0 and the fuel supply controlled so that at each explosion a superatmospheric pressure of between 0.5 and 2.0 kg. per square centimetre, the volume ratio and pressures being inversely related so that the lower volume ratio value correspond to higher pressure values and vice versa. The furnace may form part of a steam-boiler or heating boiler and ratio of the cross-sectional area to the length of the outlet ducts such as to cool the exhaust gases to a final temperature of about 200 C. The fuel may be liquid, gaseous, or pulverized solid fuel.
Patent GB-283848-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/14
Filed: 1927-12-15
Abstract: 283,848. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen). Jan. 17, 1927, [Convention date]. Filaments of the closely-wound type for highpower lamps are roughened over all or a part of their surface to such a degree that the black-body radiation so obtained is maintained during the useful life of the lamp. The roughening may be produced by sand-blasting, or by slow chemical or electrolytic etching, or by the rapid deposition upon the filament of the same or other refractory metal from the gaseous state, or by first oxidizing the surface, e.g. by heating the filament for twenty minutes in air at 800‹ C., and then reducing the oxide to the metallic state. The filaments to be treated must be at least of several tenths of a millimetre in diameter.
Patent GB-1413507-A (GB)
Title: Screed compositions
IPC: C08L95/00
Filed: 1972-07-21
Abstract: 1413507 Coatings formed from bitumen coated particles BPB INDUSTRIES LTD 23 July 1973 [21 July 1972] 34176/72 Heading B2E [Also in Division C3] A dry screed composition comprises particles of expanded aggregate which have been precoated with blown (oxidised) bitumen to form a free flowing composition. The aggregate may be pumice, expanded slate, expanded shale, expanded clay, foamed slag or sintered pulverised fuel ash. The blown bitumen may have a ring and ball softening point of 70-160‹C and a penetration at 25‹C of 5-50. The dry screed may be applied to a substrate after which heat, e.g. by a flame, is applied to the coated aggregate to soften the bitumen and the layer (or layers) compacted. An agent, e.g. petroleum oil, may be added to the laid aggregate to accelerate binding between the coated particles. One embodiment of applying the dry screed to the substrate comprises applying a first layer of the coated aggregate, applying a second layer of the coated aggregate of smaller particle size over said first layer, heating the exposed surface of said second layer, applying over said second layer whilst said surface is still hot a third layer comprising non-expanded rigid aggregate which is of still smaller particle size and which has been precoated with blown (or oxidised) bitumen and levelling and compacting the laid screed before the screed is cooled. In specific example I a first layer comprising 15 parts by volume expanded clay (¥"-#") and 1 part by volume blown bitumen is first applied, followed by a second layer comprising 15 parts by volume expanded clay (#"-#") and .1 part by volume expanded clay (#"-#") ally with a layer comprising 10 parts by volume gravel (#"-<SP>1</SP>/ 16 ") precoated with 1 part by volume blown bitumen. Example II is similar to example I except that the second layer has aggregate of the same particle size as the first layer (i.e. ¥"-#"). In example III a low viscosity petroleum oil is sprayed over the coated aggregate.
Patent GB-1121527-A (GB)
Title: Improvements in or relating to inverter circuit arrangements
IPC: H05B41/282
Filed: 1965-08-10
Abstract: 1,121,527. Supply systems for space discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 Aug., 1965 [13 Aug., 1964], No. 34186/65. Headings H2F and H2H. [Also in Division H3] A driven inverter of the type in which an output tuned circuit is periodically energized through a thyristor and in which the load comprises discharge tubes or another load which slowly decreases in resistance when the inverter is switched on, comprises a delay element to cause the frequency of the drive to rise to its operating value more slowly than the load resistance decreases. The initial operation at the lower frequency causes the load voltage to be less. The driving oscillator may be of the Colpilts type (Fig. 3, not shown), with its tuning capacitor (49) connected in series with a lamp (50) which renders the capacitor less effective as the lamp warms up. Alternatively, the oscillator may be a multivibrator with thermistors connected in series with the timing resistors. In Fig. 5 the driving oscillator comprises a capacitor 73 charged through timing resistors 74, 75 and 76 and periodically discharged through a blocking oscillator 80, the resulting output being fed to the inverter output stage through an amplifier 90. A time constant circuit 78, 79 renders a transistor 77 conducting after a delay and this short circuits timing resistor 75 to increase the frequency. The Specification describes a push-pull freerunning inverter also having a frequency delay arrangement, but which by omission of the feedback elements is suitable for use as the output stage of a driven inverter in accordance with the invertion. This inverter (Fig. 1) is basically similar to those described in Specifications 978,787 and 1,064,754 and comprises a series tuned circuit consisting of inductor 21 and the capacitive reactance of a parallel tuned output 3, 18. The operating frequency is determined by a feedback circuit comprising a series tuned circuit 22, 23 and a saturating transformer 24, the circuit being shunted by a tuning capacitor 19 in series with a lamp 20. On switching on the inverter the resistance of the lamp rises as the lamp heats up and so the oscillation frequency rises.
Patent GB-1045906-A (GB)
Title: Support stand for a printed circuit board
Inventor: ROGERS STANLEY JAMES BERTRAM
IPC: H05K7/14
Filed: 1964-08-21
Abstract: 1,045,906. Work benches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 13, 1965 [Aug. 21, 1964], No. 34306/64. Heading B4X. A support stand for a printed circuit board carrying components, comprises a flat base member 1 to which are detachably or otherwise secured upstanding spikes 4 of resilient material arranged in a regular or irregular pattern. The spikes 4 are moulded from synthetic material such as polythene, the hardness and resilience of the spikes being such as to provide a degree of lateral resilience whilst being sufficiently rigid endwise to carry the weight of the board. Each spike has an internal bore and is internally threaded at its base for attachment to threaded studs 2 projecting from the surface of the base member.
Patent GB-469929-A (GB)
Title: Improvements in photographic roll film spools and in the manufacture thereof
IPC: G03B17/30
Filed: 1936-12-14
Abstract: 469,929. Making roll - film spools. SCHWARZ, P.; and BERNING, E., and BERNING, A., (trading as Rafflenbeul, G. [Firm of]). Dec. 14, 1936, No. 34343. [Classes 83 (ii) and 83 (iv)] [Also in Group IX] Jointing by stamping.- Roll-film spools are made by inserting a body b into a stamped recess c in a flange a and applying end pressure to make the joint Fig. 2. A recess d in the body b facilitates the flanging of the body. The recess d may be elongated or interrupted and slits may be formed in the end of the body.